Lamp-burner.



PATENTED OCT. 27, 1903.

W. S. HAMM. LAMP BURNER.

APPLICATION FILED AUG. 3, 1903 N0 MODEL.

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iatented October 27, 190:

WILLIAM S. I-IAMM, OF

CHICAGO, ILLINOIS, ASSI GNOR TO THE ADAMS AND \VESTLAKE COMPANY, OFILLINOIS.

' LAM P-BURNER.

QPECIFIGATION forming part of Letters P Application filed August s,1903.

To all whom it may concern.-

Beit knownthatLWTLLIAM S. HAMM, a citizen of the United States, residingat Chicago,

in the county of Cook and State of Illinois,

provements in Lamp-Burners, of which the followi part thereof.

This invention is designed for use with such switch, semaphore, andother stationary signal-lamps employed in railroad signaling as areintended to be supplied with oil only at long intervals-say from sevento eight days-- I and to remain without attention such as is requiredfor trimming of the wick, cleaning of the burner, &c., for an equallength of time. In an applicatio date herewith in the names of John A.Mosher and William D. Legge, Serial No. 168,092, a lamp-burner isdescribed and claimed adapted for such service, and in the use of such aburner it becomes necessary that the wick which, as stated, remainsunexamined for so long a period shall be maintained in a constantposition and prevented from being jarred down while the burner is inservice. In a lamp of this character the flame from the burner issmaller than is ordinarily found in signallamps, and therefore moreeasily'influenced by the position of the wick, the .size of the flamebeing susceptible of reduction upon the slightest variation in theheight of the wick. For this reason it is necessary to maintain aspecified or determined position of the wick during the entire length ofservice. Heretofore attempts have been made to lock the wick inpredetermined position, but so far as I am advised not by the meansemployed by me, which permit of the convenient reaching of the lock foroperation without the removal of the burner from the font. -In myinvention the locking-pin is so located with respect to the burner thatsaid pin may be disengaged from the wick by the use of one hand whilethe other is employed in raising or lowering the wick.

In the accompanying drawings, Figure 1 is a side view of alamp-burnerembodying my invention. Fig. 2 is a plan View of the same,

a portion of the chimney-gallerybeing broken atent No.

742, 37. dated October 27, 1903. Serial No. l88,082. (No model.)

away to better show my improvement. Fig. 3 is a vertical section. Figs.tand 5 are details'hereinafter described. Fig. 6 shows a modification.

The base part 0 f the burner is represented by 1,it having a threadedportion 2 of re duced diameter for attachment to the oil-font. Thewick-tube is shown by 3, it passing centrally through the portion 1, thelatter being closed at its bottom 4 and having a domed top 5, thewick-tube extending through and above the latter, as shown. Surroundingthe wicktube and secured to the domed top 5 is the lower and stationarypart 6 of the burnercone, the upper and removable portion of said conehaving perforated sides and being shown by 7. The two parts 6 f the coneare detachably connected, preferably by means of bayonet-joints. The topof the removable portion 7 of the cone is provided with a tubular tip10, the upper portion of which is cup-shaped, as shown at 11, the lowerend of the tip extending to within a short distance. of the top of thewick-tube 3. The chimneygallery is shown by 12, it being supported bythe base 1 of the burner through the medium of the chimney-holding wires13. burner as is here outlined is described and claimed in theabove-mentioned joint application of Mosher and Legge. The wick-raisingshaft 16, with its ratchet or star wheel 17, is fitted to and journaledin the base in the ordinary manner.

In the wick-lock, which constitutes the invention herein claimed, a pin22 is supported by the base 1 and a hooded bracket 19, projecting fromthe base, the pin being capable of sliding movement. A spiral spring 20is confined between the outer wall of said hood and a collar 21, mountedupon the pin 22, the latter having a button 23 on its outer end adaptedto be readily grasped by the operatcr. The inner sharpened end of thepin is adapted when in normal position'to project partly through thewick-tube 3, so as to enter the wick 24:, the pin being forced inwardlyby the action of the spring 20. The pin 22 preferably stands in theplane of the axis of the wick-adjusting wheel 17 and at a right anglethereto. It will be seen that the pin 22 is at all times provided withat least two bearings, one being in the outer end of the hooded bracket19 and the other in the Wall of the base 1, so that the pin is alwaysmaintained in horizontal position, it difiering in this respect from acertain form of wick-lock the inner or operative end of which is adaptedto be given an up-and-down movement for raising the wick. The object inhooding the -volving invention bracket 19 is to protect the portion ofthe pin 22 that extends beyond the base 1 and the spring from the actionof the elements. In Fig. 6 the pin is shown as adapted to engage theteeth on the wheel, thus preventing its turning and providing a doublelock for the wick-'6. e., by means of the pin and also the teeth of thewheel.

The operation of my invention will be readily understood from theforegoing, and it will be seen that the locking-pin 22 may be withdrawnfrom the wick 24 while the operator with the other handadjustsitsheight. Figs. 4 and 5 show the locking-pin and its adjuncts detachedfrom the burner.

I do not restrict myself to the exact details of construction,combination, and arrangement herein set forth, it being obvious thatminor variations thereof not involving the exercise of invention may bemade by the skilled mechanic, and such departures from what is hereindescribed and claimed not in- I consider as within the scope and termsof my claims.

Having thus described my invention, I claim 1. In a lamp-burner, a basehaving a pinhole in its side, abracket projecting from said base havingan opening in line with the pinhole therei i, and a Wick-tube passingvertisentrally through said base and i caily and provided with apin-hole, combined with a slidable pin supported by said bracket andbase and adapted to enter the hole in the wick-tube, a collar on saidpin, and a spiral spring confined between the outer wall of the bracketand said collar, substantially as set forth.

2. In a lamp-burner, a base having a pinhole in its side, a hoodedbracket projecting from said base having an opening in line with thepin-hole therein, and a wick-tube passing verticallyand centrallythrough said base and provided with a pin-hole, combined with aslid'able headed pin supported by said bracket and base and adapted toenter the hole in the wick-tube, a collar on said pin, and a spiralspring confined between the outer Wall of the bracket and said collar,substantially as set forth.

In a lamp-burner, a base, a wick-tube extending vertically through saidbase, and a wick-adjusting shaft supported by said base and providedwith a ratchet or star wheel passing through a slot in the wick tube,combined with a bracket extending from the base at a right angle to theWickadjusting shaft, a headed pin supported by said bracket, base andwick-tube so as to have a sliding movement, the inner end of said pinbeing adapted to perforate the wick and engage with said ratchet or starwheel, and means for normally forcing said pin into such position,substantially as set forth.

In testimony whereof I hereunto set my hand and seal.

WILLIAM S. HAMM. [L. s.] Witnesses:

LoUIs V. EGGERT,

THos. G. TROXEL, Jr.

